Punch



Sept. 25 1923.

F. MMALEESE PUNCH Filed May 1 s. 1921- 2 Sheets-Sheet a INVENTOR.

A TTORNEYJ.

1 469 093 Sept. 25, 1923. F. L. M ALEEsE v9 0 v PUNCH Filed May 15. 192. 2 shQefsslyet z IN VEN TOR.

A TTORNEYJ.

Patented Sept. 25, 1.923.

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vFREIDERIC L. MAOALEESE, OF MILJVAUKEE, WISCONSIN.

runon.

Application filed May 13,

To all whom it may concern:

Be it known that I, FREnnRIc L. MAO- PLLETESE, citizen of the United States. residing at Milwaukee, county of Milwaukee, and State of lVisconsin, have invented new and useful Improvements in Punches, .of which the following is a specification.

This invention relates to punches and is particularly directed to power driven punches.

Objects of this invention are to provide a power driven punch which will automatically punch a series of holes in a sheet of material. such for example, as a flat rubber mat: to provide such a machine which is rapid in its operation; which is automatic; which will automatically retract and advance itself continuously across such sheet of material; and which will ,not distort the material. Further objects are to provide a power driven punch which may be readily manipulated; to provide such a machine arranged to retain the mat in flat condition; and to so organize the machine that a series of regularly spaced punch holeswill be formed in the mat.

Further objects are to provide a power driven punch in which a continuously travellinc; carriage is provided thereby avoiding inertia effects and jars due to sudden starting and stopping: to provide such an apparatus in which the punch is temporarily and intermittentlyretained relatively still against longitudinal motion; and in, which the punch is retained in elevated position while the carriage is being retracted.

Further objects are to provide a simple machine having the above noted characten istics and one which may be readily and cheaply manufactured.

An embodiment of the invention is shown in the, accompanying drawing, in which:

Fig. 1 is a fragmentary plan view of the machine. y 7

Fig.2 is a fragmentary side elevation of the structure shown in Figure 1.

Fig. 3 is an end view of the structure shown in Figure 1.

Fig. 4 is a view on an enlarged scale "of a portion of the apparatus such view cor responding to the central part of Figure 2.

Figure 5 is a view of a portion of the apparatus shown in Figure 4 with parts removed for clearness;

1921. Serial No. 469,093.

The machine comprises a main carriage 1 which 1s supported by means of rollers 2 upon a pair, of stationary tracks 3 and 4.

Below the tracks and carriage a punching table or support 5515. mounted for lateral motion upon a base or support 6. V This support 5 is adapted to have the mat 7 placed thereon, in extended position A hand crank 8, having an extended portion. 9 threadably engaging a nut or similar portion 10 formed upon the base member 6, is 2 adapted to impart this transverse motion 7 said main carriage.

The main carriage is provided with a transverse driving shaft 14 which has loosely mounted thereon, a driving pulley 15. A trigger clutch 16 serves to connect and disconnect the driving wheel or fly wheel 15 from the shaft 14 such trigger clutch being controlled by the control lever 17, whose operation will be described in detail later. A second transverse shaft 18 is mounted parallel to the shaft 14 and is adapted to receive motion from such shaft 14 thru the medium of the reducing gears 19 and 20. An over-running clutch 21 serves tocouple the otherwise loosely moun ed gear 20 to the shaft 18, such clutch being under the control of the spring-held lever 21'. This lever, it will -be noted, is pivot-ed at 22 and is connected with the spring 28 at the point 24 so that when the line of the spring falls upon either of the two sides of the pivot point 22. such spring will serve to retain the lever 21' in either A punch 11, having a cutting.

of the respective positions.v The shaft 18 i carriesat its outer end a pinion 25 which meshes with a rack 26 mounted upon the under side of the track 4. t

I The shaft 14 extendscutwardly beyond the outlines of the main carriage 1 and car- 'i'ies at its extended-end an eccentric pin 27 which works in a slide block 28. The upper end of the punch 11 is provided with a rectangular slot 29 withinwhich such block 28 works, whereby vertical reciprocatory motion will. be imparted to the punch.-- The extended portion of the shaft 14 also carries as the driving pulley or tiy ee l belt 33 which travels the mat 7. When such punch been wi 'Therelative positions of the crank and of the pin 42 are such th t the punch a cam 30, which works between rollers 81, supported by arms 32 from the auxiliary carriage 13. It will be seen that when the shaft 14in is rotated, the carriage i3 is given oscillatory motion relative to the main carriage and the punch is given an up and down reciprocatory motion. The relation of the cam 30 and pin 27 is such that the punch will make a downward or working stroke when the auxiliary carriage 13 moving reaiwardly and when the pnnclr hasbeen withdrwvn from the mat 7, the aux1liary carriage 13 will be given a torward. motion by the cam 30.

As thus "far d scribed; it will seen that I 'h. l is rotated in the cirection ot the arrow (Figure 4) the carriage will be advanced, as indicated in the figure, continuously alongthe tracks. At the same time cam 30 will oscillate the auxilia in such a manner that the re ward motion of the arri 9 auxiliary carriage 'exa ily neu lines the forward travel of the main carriage, so that. the auxiiary carriage tempera l and intermittently will remain relative 1 station ary to the mat 7. Whi e such auxiliary carriage remains stationary! the punch 11 makes a working; stroke and w ll iraws any carr iron and corredrawn from the mat the an is then given its "forward spondingly moves the pi i sary position ready for its working stii'oke. The energy for operating the entire mech anism is supplied thru the me. i of the in the direction indicated by the arrow in W6 1; The belt )EISSQS over guidepulleys 34. (Figures 1i and and downwardly a rd around t e driving' pulley 15. V b

When the traveling carriage has almost reached its outer limit ot' travel, a member 85, mounted noon the ugrirned portion; ot the t-rnclt t, enga s he trip. 36 mounted upon the travel C? iage l;his trip {36 then withdraws its linger 4 37 from engagement with the lug: ct th spring-pressed arm 39 a id allows such a in to rotate the'control shatt in the direction indicated by the error? in Figure i. when this shalt is rotated, the (to, trol arm 1? moves its retaining path of travel. of the connecting; element of the t ip clutch This pin is, there-tore. rotated against er ll into the which the 16 the action of its SDiiDo' when it strikes the 1-in-7 ger etl and serves both to disconnect therl wheel or pu i from the shaitt an 1 also to arrest the motion of the 'sha is; 27

is retained in its upward or osit on when this disconnec pulley from the shaft coon-s. The car by springs 35 an rest the motion the carriage. V

The retraction of the carriage is due to the "frictional drag of the belt upon the pulleys l5 and. S i, The ca travels backwardly to its initial positionthe pinion freely as the member Ql the over-running clutch is now s ing-held in its outward position, thereby maintaining the shatt operatively disconnected from the other portions of the mecl inism.

'The carriage, during its rearward travel, acquires considerable ir oinentunraiul sti lies the resiliently pressed bumpers with snllt cient orce to cause the carriage o rebound or st rt on its outward travel. Vfhen this occurs, the pivotally mounted member 45 L; U .1 71 m 9/ "L stiilzes hrs llle tlidp ineiobti so i after, releases such ,trip niemoer, then strikes the 21121139, and rotates such arm clockw se until the member aga n. one, es eneath the lug; thereby .loc the control rod 1? mats outward position, as indicated in Figure 0.

When this occu the continued rotationot the pulley if ailows thc ti g 'er clutch to again operatively connect the shaft 14; and the driving' pulley in a well known manner, and allows the i r to be moved by its spring tl .v position indicated in Figu e "riled descrip imi ot the trigger clutch me iven,"such i'uechanisiu' noted that each members 1 I mounted pins 25-5 and 45". l ly havi ranged upon the mechanism, that wardly extending o'orion l of tie 1, the arms 86 and 39 are ermitteti to move the members and 4&5 Inst the action out other respective springs while thecan riage is making its retractivemovement. in order to again establish the operative connection between the 20 and the shaft 18, a rod l6, which extends downwardly from the tree endof the lever 21, engages the spring-pressed diagonally .7 arranged pivoted lever il-7 which is associated with the track 3. When this red engages the lever, it is moved inwardly towards thecenlnas V 'iiag'e, the-retore.

rotating the shaft to be,

iiressed members so ar- 7 ter of the carriage and moves the member 21 of the over-running clutch into operative engagement with the member 21 of such clutch, thereby re-establishing the driving connection between the fly wheel or drive pulley l5 and the driving pinion 25,

If desired, the punch may be provided with a rubber or other resilient gasket or washer 12' between the cutting head andthe stem of the punch or in any suitable position to take up the shock due to the punching operation, particularly that due to the striking of the punch cutting head against the table. It is of course understood that the table is adjustable vertically with respect to thepunch either by adjusting the punch mechanism or by adjusting the table. However, in case the adiustment should not be quite right, the resilient gasket will take up the shock that would otherwise be imposed 7 upon the punch. It is to be noted that the relatively heavy portions of the punch continuously travel outwardly, during the working outward motion of the mechanism, and that a very light auxiliary carriage and a very light punch 11 are aiven'intermitt-ent oscillatory. motion; Bythis means the momentum effects are not encountered when thepunch proper 11 remains in one fixed position with regardto longitudinal motion. It

I will also be seen that the punch'proper is retainedjin its elevated position during the entire retracted motion of the main carriage.

It will thus be seen that an automatic power driven punch has been 'provi ded which will puncha series of holes across a mat automatically retract itself. and again start on its outward working travel. During this retracted motion of the punch it is merely necessary for the operator 'to rotate the hand crank 8 a certain, amount to position the mat'properly for a successive row of perforations. In this" manner. a succession or" punched rows otfperforations may be rap idly termed without subiecting the mat to distortion and without subjecting the mechan sm of the punching apparatus to excessive strains, due to sudden starting and stopping.

I claim:

1. A traveling punch for punching a series of perforations in a sheet of material, comprising a carriage adapted to travel continuously across said sheet. an auxiliary carriage carried thereby a punch reciprocated within said auxiliary carriage, and means for reciprocating said auxiliary carriage, whereby said punch be intermittently tree from longitudinal motion.

2. A punch, comprising a continuously traveling carriage, an auxiliary carriage carried thereby, means i for oscillating said auxiliary carriage to cause said auxiliary carriage to temporarily remain mo tionless at successive intervals and to rapidly advance between said intervals, and a re-- ciprocatory punch supported by said aux iliary carriage.

3. A machine for punching holes in a sheet of material, comprising a track, a carriage adapted to travel along said track across said sheet of material,and

a punch mounted in said carriage having relative longitudinal and vertical motion with respect to said carriage, whereby, when said punch is descending, it is temporarily free from longitudinal motion with respect to said sheet.

i. A machine for punchinga series of holes in a sheet of material, comprising a track, a carriage adapted to advance continuously along said track, a, reciprocatory punch carried by said carriage, and, mechanism associating said track, carriage and puncln to causesaid punch to temporarily cease traveling longitudinally and tomake a punching stroke at intervals.

5. A machine for punching a series 0t holes in a sheet of material. comprising a main carriage adapted to travel back and forthacross said sheet of materiah an auxiliary carriage carried by said main carriage a reciprocatory punch mounted on said aux iliary carriage. means foroscillating said auxiliary carriage in the. direction ot' travel of said main carriage to'permit said. punch to make a workingstroke while said aurtiliary carriage is temporarily motionless, and meanstor causing the cessation otthe operation of said punch while said main carriage is 'being'retracted/ i V 7 6. A machine for punching a series of holes in a relativelystationary sheet of material, comprising at traveling carriage. means for automatically advancing carriage continuously across said sheet and for retracting said carriage. a member carried a series of by said carriage 'mechanism for advancing and retracting said member with respect to said carriage whereby said member is cemporarily and: intermittently held stationary relative to said sheet a reciprocatory punch associated with said 'member, and mecha nism. for operating said punch to cause a working stroke while said'first mentioned member is relatively stationary.

7. A machine for punching a series of holes in arelatively stationary sheet of ma- -ried by said carriage, mechanism for ad vancing and retracting said member with respect tosard car rage where said member is te'm aoraril' and interi'nittentlv held I b .i v

stationary relative to said sheet, a reciproeatery puncl1 assoe1ated with said member and niechanisi'u' for operating said punch to cause working stroke while said first mens tioned member isrelatively stationary, and atrip for operatively disconnecting said mem her and 'said punch from said carriage ade vaneing' mechanisn'r while said carriage is bein retracted, said mechanism adapted to retain said punch in an elevated position while said carriage is being retracted.

9/13 machine for punching series of holes in a relatively stationarysheet of-material, comprising a traveling carriage,

means for automatically advancing said carriag'e continuously across said sheet and for retracting said carriage, a member carried by said carriage, mechanism for and retracting said member with respect to said carriage whereby said member is temrelative to said sheet, a reciproe'atory punch associated with said member, andmechanism' for'operatings'aid punch to cause a worklng 7 stroke while said'memberyis relatively statio'nary, means for initiating the retraction of said carriage when it hasarrived at its limit of travel and for retaining said punch in elevated position during retraction of said carriage, andmeans for re-establishing the operative connection between said punch and said carriage advancing mechanism when said carriage has been retracted.

10,!in automatic, punch comprising a il/C 331101119;

porarily'and intermittently held stationary main traveling carriage, a shaft rotatably' mounted within said carriage, a pulley on said shaft, a belt extendingm the direction.

of travel of said main carriage and adapted to rotate said pulley, mechanismconnected with said shaft for advancing said shaft continuously in one direction, an auxiliary carri'age carried by'said main carriage,"niecha'- nism for connecting said shaftandauxiliary carriage whereby said carriage temporarily and intermittently? remains substantially stationary while said main "carriage continu ously advances, a reciprocatory punch carried in said auxiliary carriage, mechanism for imparting reciprocatory motion to said punch, and means for disconnectingsaid car- "iage advancing mechanism from said shaft,

and for disconnecting said pulley from said shaft whereby said carriage may be retracted by the travelingbelt. l

11. An automatic punch comprising a main carriage, a shaft rotatably mounted within said'carri'age, a pulley on said shaft', a belt extending in the direction of travel of said main carriage and adapted to rotate said pulley, mechanism connected with said shaft for advancing said main carriage continuously in one direction, an auxiliary car-C riage carried by said imain carriage, mechanism for conneeting'sard shaft and auxiliary carriage whereby said: carriage temporarily.

and intermittently remains substantially staadvances, a reciprocatory punch carried in said auxiliary carriage, mechanism for'imparting reciprocatory'motion to said punch, mechanism 'for automatically disconnecting said shaft from said carriage advancing mechanism and for disconnecting said pulley from said shaft when said main carriage has completed its outward travel and mechanism for re-establishing the interruptedconno'ctions when the carriage has been re- 0 tionary whlle sald' main carriage continuously tracted, whereby said carriage will be con-' tinuously advanced by said carriage advanc ing mechanism inone direction and retracted by'the traveling. belt in theother direction;

' FREDERIC L; *MACALEESE. 

